Calculating machine



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CALCULATING MACHINE FlednMay 15, 1949 48 Sheets-Sheet l ATTORNEY H. P. LUHN ET AL CALCULATING MACHINE Sept. 8, 1953 48 Sheets-Sheet 2 Filed May l5, 1949 Sept. 8, 1953 H. P. LUHN ET AL CALCULATING MACHINE Filed May r13, 1949 48 Sheets-Sheet` 5 OOOOOOOOOG hmm MNN

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CALCULATING MACHINE Filed May 13, 1949 48 Sheets-Sheet` 16 BY R/C HA RD l.. J0//N50N I l v ATTORNEY Sept. 8, 1953 H. P. LUHN ET AL CALCULATING MACHINE 48 Sheets-Sheet 1'7 Filed May l5, 1949 \NN s-n` ooooooeoooooooo4 oo ooooooooooooo oo o como@ oooooooooo ooooooooooooo'ooo o oooooo ooo oo ooo oooooooooooeoaoooo ooo@ oo ooo o oo o o' oo Goa 50 @o5 oo oo oo o'o ooo SKS.

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CALCULATING MACHINE Filed May 15, 1949 48 Sheets-Sheet` 19 Sept. 8, 1953 H. P. I UHN ET Al. n 2,651,457

CALCULATING IMACHINE;

Filed May 13, 1949 i 48 Sheets-Sheet 2O SHIFT 4 ATTORNEY 

